Multiple-way stop-valve



J. DEWRANCE. MULTIPLE WAY STOP VALVE.

APPLICATION FILED-SEPT. 23. I918.

Patented July fi 192%.

jmfenwr. WM W ti d JOHN lDltl WlEti-liNCE, 01E LUNDON, ElKTGrlLll-liNlD.

MULTIPLE-"W STOP-WTllLL iTE.

application filed September 23, rate.

To all who m, may concern? Be it known that l, Jenn Dnwnnncn, a subjectof the King oi Great llritain and llreland, residing at 165 Great Doverstreet, in the county of London, lilngland, have invented new and usefullmprovements in ll/lultiple-l l ay Stop-Valves, of which the followingis a specification.

llhis invention relates to inultipleavay stop-valves adapted for use inreadily connecting or disconnecting two or more of a series of vessels,according to prevailing requirements, and consists in an improved methodof construction whereby manipulation is simplified and economy in thecost of manufacture eliected.

A three-way valve constructed according to my invention is illustratedin the accompanying drawings, whereof ltigure 1 is a longitudinalsection. lEig. 2 a plan view partly exposing the interior and Fig. 3 anexternal view looking in the opposite direction; while in a: isrepresented an al ternative method oi constructing a certain detailhereinafter particularly described.

About a central. chamber A are arranged three laterally projectingbranches, l3, B, B in each of which is mounted a springloaded valve C;two of these branches being arranged opposite one another, while thethird or intermediate branch is at right angles to the other two, allbeing in the same plane. The guide-stem C of each valve projects intothe central chamber A a sui'licient distance to admit of its beinglifted by any one of three prominent portions of a arm-shaped body Dmounted within the central chamber and carried by a stem D whereby itmay be rotated by means of an external attachment E. The latter is preferably three armed as shown; each arm corresponding with and serving toindicate the position. or one of the prominent and operative portions ofthe cam-shaped body l). The cam-stem D is prolonged beyond the cam D andtakes a bearing in the removable cover A which serves to close thecentral chamber. Upon the under side of the handle E is formed aprojection or boss lit in which is mounted a. spring-loaded ball Gadapted to bear against the neck of the Specification of Letters Patent.

Patented July 6, th h.

Serial No. 255,362.

valve-casing A in which the cam-spindle D is mounted. In the plane ofthe said ball are formed, at certain points in the outer surface of theneck, shallow cup-like depressions G adapted for the ball to engage withas the latter arrives opposite each depression, thereby ollering amoderate resistance to the further rotation of the handle lid. Theoperation of turning this handle is in consequence attended by a seriesof clicks which indicate to the operator the extent to which the cam isturned and assist in determining the final position desired.

For the spring-loaded ball (at, a springloaded plunger G may besubstituted as illustrated in Fig. l; the same being formed with arounded inner extremity adapted to enter and temporarily engage in eachof the depressions l" formed in the neck of the valve-casing it, aspreviously described with reference to the ball d. This method ofconstruction is advantageous in respect of providing against the ballescaping and becoming lost upon the handle being removed irom the neck01. the valve-casing.

lit will also be obvious that, instead of a circumferential cam foroperating the valves, a face-cam may be employed; the valve C and thebranches B, B, 13 wherein they are mounted being in this case arrangedparallel with, instead of at right angles to, the cam-stem D.

it three-way valve of the character above described is particularlyappropriate for use in optionally connecting a petrol storage tank witha carbureter or with a service tank, or the latter with the carburetor;but it may be employed for other purposes. Ur where the number oivessels to be placed in communication at the option of the user is morethan three, the essential elements of the construction may becorrespondingly increased in number.

l claim 1. A multiple-way stop valve comprising a central chamber, aplurality of branches extending therefrom in angular relation, valvesfor controlling said branches, said valves having an operative partextending into the chamber and a cam mounted within the chamber, havinga plurality of project ltllll valve having an operative part extendinginto the chamber, a 'am mounted in the chamber, having three projectingpoints dis- 1O posed to engage, in one position, the three projectingparts 01 the valves and means for revolving the cam.

JOHN DEWRANCE.

